tut08_generators_and_yield.py

Revision 1837 (checked in by fumanchu, 6 months ago)

Fix for #756 (Deprecate server.quickstart):

server.quickstart now does nothing but raise a warning.
Made 'root' argument to cherrypy.quickstart optional (to make tutorials easier, but it applies broadly).
Removed all calls to server.quickstart.

Line
1	"""
2	Bonus Tutorial: Using generators to return result bodies
3
4	Instead of returning a complete result string, you can use the yield
5	statement to return one result part after another. This may be convenient
6	in situations where using a template package like CherryPy or Cheetah
7	would be overkill, and messy string concatenation too uncool. ;-)
8	"""
9
10	import cherrypy
11
12
13	class GeneratorDemo:
14
15	def header(self):
16	return "<html><body><h2>Generators rule!</h2>"
17
18	def footer(self):
19	return "</body></html>"
20
21	def index(self):
22	# Let's make up a list of users for presentation purposes
23	users = ['Remi', 'Carlos', 'Hendrik', 'Lorenzo Lamas']
24
25	# Every yield line adds one part to the total result body.
26	yield self.header()
27	yield "<h3>List of users:</h3>"
28
29	for user in users:
30	yield "%s<br/>" % user
31
32	yield self.footer()
33	index.exposed = True
34
35	cherrypy.tree.mount(GeneratorDemo())
36
37
38	if __name__ == '__main__':
39	import os.path
40	thisdir = os.path.dirname(__file__)
41	cherrypy.quickstart(config=os.path.join(thisdir, 'tutorial.conf'))

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